GESIPA’s PolyGrip rivets feature a wide grip range enabling a single Polygrip to replace up to 3 lengths of standard blind rivets. The PolyGrip’s hole-filling rivet body expands within the application material for better joint integrity. The large blind-side closing head with locked mandrel core provides better support and improved sealing for weather resistance. Polygrips are available in three head styles. Material choices include Aluminum, Steel and Stainless Steel.